Green Global
Foundation   Journal
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EFFECT OF VARIETY, ROW ARRANGEMENT AND NITROGEN DOSE ON THE PERFORMANCE OF TRANSPLANT AMAN RICE (Pages : 7 - 16)

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from July to December 2013 to observe the effect of variety, row arrangement and nitrogen dose on the performance of transplant Aman rice. The experiment comprised two varieties viz. BRRI dhan51 and BRRI dhan52, three row arrangements viz. single, double and triple row arrangement and four nitrogen doses viz. 0, 45, 60 and 75 kg N ha-1. The experiment was laid out in a randomized complete block design with three replications. Yield components and yield of transplant Aman rice were significantly influenced by variety, row arrangement, nitrogen dose and their interactions. BRRI dhan52 produced higher number effective tillers hill-1 (8.52), grains panicle-1 (112.14), 1000-grain weight (26.99 g) and grain yield (4.85 t ha-1) compared to BRRI dhan51. The highest number of effective tillers hill-1 (9.64), grains panicle-l (116.92) and grain yield (4.73 t ha-1) were obtained in double row arrangement compared to other row arrangements. The lowest grain yield (4.61 t ha-1) was obtained in triple row arrangement. Higher dose of nitrogen 75 kg N ha-1 produced the highest number of effective tillers hill-1 (9.22), number of grains panicle-1 (116.14) and the highest grain yield (4.99 t ha-l) which was as good as 60 kg N ha-1 and the lowest values was obtained in control plot. Among the treatment combinations the highest grain yield (5.76 t ha-1) was obtained from BRRI dhan52 transplanted in double row arrangement fertilized with 75 kg N ha-1. So, cultivation of BRRI dhan52 in double row fertilized with 75 kg N ha-1 is the promising technique to obtain the highest grain yield.Download